General
Target

3c9223d92c40760077983ab7eeb7509d92ec5400ef0c26151021dda113ce27d1

Size

114KB

Sample

220703-htphbabga5

Score
10/10
MD5

a01320aeca43cc1846139e6db2caffd4

SHA1

df9ac1de1f02265fe1a88206e2ef5ec70c60890f

SHA256

3c9223d92c40760077983ab7eeb7509d92ec5400ef0c26151021dda113ce27d1

SHA512

26ad00b80514b40130e4ce6574688864a54371261040a3ddaf2ea1b9b6548cf64b14f3020e21583bee9f4f39f3ab45a5742f613d2a152e33c51f43467f7d3cf6

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets
Target

3c9223d92c40760077983ab7eeb7509d92ec5400ef0c26151021dda113ce27d1

MD5

a01320aeca43cc1846139e6db2caffd4

Filesize

114KB

Score
10/10
SHA1

df9ac1de1f02265fe1a88206e2ef5ec70c60890f

SHA256

3c9223d92c40760077983ab7eeb7509d92ec5400ef0c26151021dda113ce27d1

SHA512

26ad00b80514b40130e4ce6574688864a54371261040a3ddaf2ea1b9b6548cf64b14f3020e21583bee9f4f39f3ab45a5742f613d2a152e33c51f43467f7d3cf6

Tags

Signatures

  • Tofsee

    Description

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    Tags

  • Windows security bypass

    Tags

    TTPs

    Disabling Security ToolsModify Registry
  • Creates new service(s)

    Tags

    TTPs

    New Service
  • Executes dropped EXE

  • Modifies Windows Firewall

    Tags

    TTPs

    Modify Existing Service
  • Sets service image path in registry

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Checks computer location settings

    Description

    Looks up country code configured in the registry, likely geofence.

    TTPs

    Query RegistrySystem Information Discovery
  • Deletes itself

  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Tasks

                    static1

                    Score
                    N/A

                    behavioral1

                    Score
                    10/10

                    behavioral2

                    Score
                    10/10